I found it extremely difficult to find out what is exactly meant to be included in this proposed nomination: the most obvious candidates - the Art Deco ensemble in the city centre for which Montevideo is known do not seem to be included. The only building explicitly mentioned in the description is the Hostpital de Clinicas, which is a rationalist concrete monster from the 50ies. Residences surrounding the Park Batllo y Ordonez are mentioned without naming the specific buildings. Perhaps the nearby Estadio Centenario (Centennial Stadium) with its rationalist viewing tower from the 30ies would be included too.

I personally didn't find any of the buildings surrounding the park, which seems to be the centre of the proposed nomination, to be especially worthy of a visit. Additionally, I could not find out about any special significance of these buildings for the history of architecture. It would be interesting to see how Uruguay proceeds with this nomination if it ever does.